DISCUSSION: Only one small randomized controlled trial and several lower level efficacy studies have been performed on spinal decompression therapy. In general the quality of these studies is questionable. Many of the studies were performed using the VAX-D unit which places the patient in a prone position. Often companies utilize this research for their marketing although their units place the patient in the supine position.
SUMMARY: Only limited evidence is available to warrant the routine use of non-surgical spinal decompression, particularly when many other well investigated, less expensive alternatives are available.
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